Tire grinding and truing machine.



1.- CQPRICE. TIRE GRlNDlNG AND TRUlNG MACHINE. APPLICATION FILED MAY 3.1916.

Patented Mar. 6, 1917.

2 SHEETS-SHEET I.

$1M I a" I. 0. PRICE. TIRE GRINDING AND TRUIN G MACHINE. APPLICATIONFILED III/1Y3. I916- I 1,218A59. Patented Mar; 6, mu.

- race, in the county of Kanawha and State of est Vir inia. haveinvented. certain sr'rns a I:

JOHN C. PRICE, OF WEV ACO, WEST VIRGINIA.

To al l whom it'mcy concern." I

Be it known that I, JOHN C. PRICE, a citizenlof the UnitedStates,'residing at Wi enew and useful Improvements in Tire Grinding andTruing Machines, of. which the following is a specification Y Thisinvention relates to improvements-in tire grinding and Qtruingmachines,one objectof the invention being the provision .of means forgrinding and. truing the tires and treads of car wheels, and whereby asin lefwheel or two wheels may be ground an trued simultaneously. v .,Af rtherobjcct of the present invention is the provision of a machine ofthis character, which is simple, durable and'inexpensive toumanufacture,and operate, and which is thoroughly eiiicient and practical in use. 1 r

In the accompanying drawings Figure 1 is a top plan view of one form of'1 machine. l

Fig. 2 is a side elevation thereof; Fig. 3 is a detail view thereof.

Fig. 4 is a top plan view of a modified.

form of the machine.

Referring to the drawings, and more particularly to Figs. 1, 2 and 3, thnumeral 5 designates the platform.

Mounted upon the platform are the integrally formed and spaced standards'6 carrying the bearings 7 for the shaft 8, upon which can be removablymounted the journal for the car wheels 9, to be ground and trued.

. Also mounted upon the platform are the two bearing standards 10, inwhich is rotatably'and slidably mounted the shaft 11, which carriesremovably upon its outer ends the abrading wheels 12. These wheels arepreferably made of emery, carborundum, or a like material, and by reasonof the fact that the shaft carryin them can be both rotated and movedlongitudinally, the peripheries of the wheels 12 may be movedtransversely 'of the treads or rimsof ,the wheels 9, to

thus grind and true the complete treads.

A hand lever 13 is mounted upon the platform, and is connected by theslotted yoke 14 to the pins on the collar 15 on the shaft 11, so thatthe operator can slide the shaft 11, and thus direct the movement of thewheels 12. A 11, so that the elt 17, connected to the elec- .TIREIGRINDING ann rnome macninn;

V A I Specification of Letters Patent; *Fatnlidl. Application filed may;,191e.- Seria1No.95,248.f vj' ulley 16 is fast to the shaft 7 tricmotor or other-prime mover" l8g 'in'ay be operated to rotate 'theshaftfll and the abrading wheels. J I i1 r. i Where found desirable, thepatform"mayl be moved under the car trmclr'whiclr has beenpreviously'jacked up, thewhels to fb'e ground and trued not being'removedybutf the abradingfwheels are moved- 'to-propr relation thereto;This featureis especially desirable with "mine cars, as this operationcan 'be carriedout without placing thezcar out ofcommission, II... M-fiIn the construction shown in 4, the platform '19,,carrie's the motororprime.

mover -20,"Which by' 1meansof"thebelt 21 operates through the pulley 22,theysh'aft 233 This shaft is mounted for rotation and also longitudinalmovement in the bearing" boxes 24, and carries upon one end the abrading;wheel 25, or where desired."tfivvo may'fbejiem ployed one ateach end.In this instance, the shifting lever 26 is mounted at the front end ofthe platform, and is connected through the yoke 27 and collar 28 to theshaft 23. Y

Instead of the belt connections, where found desirable, prockets "andchains, or gears may be employed, and also where the electric motors areshown, it is evident that gas engines or any other power means may beemployed.

The construction of apparatus shown in Fig. 4 is more particularlyadapted for use upon the wheels of motor mine cars, or where it is notdesirable or practicable to remove the Wheels. Again referring to Figs.1 to 3 of the drawings, the standard 6 has formed on itsv bottom faceguide ribs 29 which engage in channels 30 formed in guide plates 31'bolted or otherwise fastened to the platform 5 in spaced parallelrelation to each other longitudinally thereof so that the standard 6 canbe moved a limited distance upon the platform; Formed on the standard 6at one side thereof is an extension 82, in the eye 33 of which isthreaded anadjusting screw 84, the same bein swiveled in a hearing orlug 35 at one en of the platform 5, and upon adjustment of this screw34: said standard can be moved upon the guide plates 31 for thepositioning of the canwheels 9 carried upon the axle 8 j ournaled *inthe bearings 7 upon said standard relative to the grinding mechanism, aswill be clearly obvious.

It is possible with this machine to cut the tread and flange of carwheels simultaneously. To do this, four abrading wheels will be used onshaft 11 instead of two, as shown, while on shaft 23 there will be twowheels 25 ofvaryirig sizes to engage the tread and flangesimultaneously.

What I claim, as new, is: a

1. In a machine of the character described a supporting platform,channeled guide plates rigidly'mounted longitudinally of the platformand in spaced parallel relation with each other, integrally formedspaced standards, ribs on the under surfaces of the standards forsliding engagement with the channeled guide plates, separable bearingson the upper surfaces of the standards for detachably receiving thejournal for car wheels, an extension projecting from the standards andpositioned between the guide plates, an eye on the outer end of theextension, an adjusting screw bar mounted in the eye, a lug carried bythe platform and having the opposite end of the bar mounted thereinwhereby when the bar is adjusted the standards will be correspondinglyadjusted, and abrading mechanism supported upon the platform and havingabrading means for engagement with the treads and flanges of car wheels.

2. In a machine of the character described, a supporting platform,spaced stationary bearing standards carried by the platform, a shaftmounted for rotary and sliding movement in the bearing standards,

abrading wheels carried by the projecting ends of the shaft, a collarcarried by the ,shaft, pins projecting from the collar, a

prime mover mounted on the platform and ,operatively connected to theshaft for rotating the shaft, a bracket carried by the ptatform, a handlever pivoted to the bracket for horizontal swinging movement,

, and a slotted'yoke formed on the inner end of the lever and engagedabout the pins so as to move the shaft laterally of the platform whenthe lever is actuated.

In testimony whereof I affix my signature.

HN C. PRICE.

Copies otfthis patent may beobtained for five cents; each, by addressingthe Commissioner of Patents,

' i Washington, D. G. I

